<template> 
  <div class="app-container">
    <el-card class="filter-container" shadow="never">
      <div>
        <i class="el-icon-search"></i>
        <span>筛选搜索</span>
      </div>
      <div style="margin-top: 15px" class="flex">
        <el-form :inline="true" :model="listQuery" size="small" label-width="140px">
          <el-form-item label="商品名称：">
            <el-input v-model="listQuery.productName" class="input-width" placeholder="商品名称"></el-input>
          </el-form-item>
          <el-form-item label="推荐状态：">
            <el-select v-model="listQuery.recommendStatus" placeholder="全部" clearable class="input-width">
              <el-option v-for="item in recommendOptions"
                         :key="item.value"
                         :label="item.label"
                         :value="item.value">
              </el-option>
            </el-select>
          </el-form-item>
        </el-form>
      </div>
      <div class="flex">
        <el-button
          type="primary"
          @click="handleSearchList()"
          size="small">
          查询搜索
        </el-button>
        <el-button
          @click="handleResetSearch()"
          size="small">
          重置
        </el-button>
      </div>
    </el-card>
    <el-card class="operate-container" shadow="never">
      <i class="el-icon-tickets"></i>
      <span>数据列表</span>
      <!--      <el-button size="mini" class="btn-add" @click="handleSelectProduct()">选择商品</el-button>-->
    </el-card>
    <div class="table-container">
      <el-table ref="newProductTable"
                :data="list"
                style="width: 100%;"
                @selection-change="handleSelectionChange"
                v-loading="listLoading" border>
        <el-table-column type="selection" width="60" align="center"></el-table-column>
        <el-table-column label="编号" width="120" align="center">
          <template slot-scope="scope">{{scope.row.id}}</template>
        </el-table-column>
        <el-table-column label="商品名称" align="center">
          <template slot-scope="scope">{{scope.row.productName}}</template>
        </el-table-column>
        <el-table-column label="是否推荐" width="200" align="center">
          <template slot-scope="scope">
            <el-switch
              @change="handleRecommendStatusStatusChange(scope.$index, scope.row)"
              :active-value="1"
              :inactive-value="0"
              v-model="scope.row.recommendStatus">
            </el-switch>
          </template>
        </el-table-column>
        <el-table-column label="状态" width="160" align="center">
          <template slot-scope="scope">{{scope.row.recommendStatus | formatRecommendStatus}}</template>
        </el-table-column>
        <el-table-column label="操作" width="180" align="center">
          <template slot-scope="scope">
            <el-button size="mini"
                       type="text"
                       @click="handleDelete(scope.$index, scope.row)">删除
            </el-button>
          </template>
        </el-table-column>
      </el-table>
    </div>
    <div class="pagination-container">
      <el-pagination
        background
        @size-change="handleSizeChange"
        @current-change="handleCurrentChange"
        layout="total, sizes,prev, pager, next,jumper"
        :page-size="listQuery.pageSize"
        :page-sizes="[5,10,15]"
        :current-page.sync="listQuery.pageNum"
        :total="total">
      </el-pagination>
    </div>
    <el-dialog title="选择商品" :visible.sync="selectDialogVisible" width="50%">
      <el-input v-model="dialogData.listQuery.keyword"
                style="width: 250px;margin-bottom: 20px"
                size="small"
                placeholder="商品名称搜索">
        <el-button slot="append" icon="el-icon-search" @click="handleSelectSearch()"></el-button>
      </el-input>
      <el-table :data="dialogData.list"
                @selection-change="handleDialogSelectionChange" border>
        <el-table-column type="selection" width="60" align="center"></el-table-column>
        <el-table-column label="商品名称" align="center">
          <template slot-scope="scope">{{scope.row.name}}</template>
        </el-table-column>
        <el-table-column label="货号" width="160" align="center">
          <template slot-scope="scope">NO.{{scope.row.productSn}}</template>
        </el-table-column>
        <el-table-column label="价格" width="120" align="center">
          <template slot-scope="scope">￥{{scope.row.price}}</template>
        </el-table-column>
      </el-table>
      <div class="pagination-container">
        <el-pagination
          background
          @size-change="handleDialogSizeChange"
          @current-change="handleDialogCurrentChange"
          layout="prev, pager, next"
          :current-page.sync="dialogData.listQuery.pageNum"
          :page-size="dialogData.listQuery.pageSize"
          :page-sizes="[5,10,15]"
          :total="dialogData.total">
        </el-pagination>
      </div>
      <div style="clear: both;"></div>
      <div slot="footer">
        <el-button size="small" @click="selectDialogVisible = false">取 消</el-button>
        <el-button size="small" type="primary" @click="handleSelectDialogConfirm()">确 定</el-button>
      </div>
    </el-dialog>
    <el-dialog title="设置排序"
               :visible.sync="sortDialogVisible"
               width="40%">
      <el-form :model="sortDialogData"
               label-width="150px">
        <el-form-item label="排序：">
          <el-input v-model="sortDialogData.sort" style="width: 200px"></el-input>
        </el-form-item>
      </el-form>
      <span slot="footer">
        <el-button @click="sortDialogVisible = false" size="small">取 消</el-button>
        <el-button type="primary" @click="handleUpdateSort" size="small">确 定</el-button>
      </span>
    </el-dialog>
  </div>
</template>
<script>
    import {
        fetchList,
        updateRecommendStatus,
        deleteNewProduct,
        createNewProduct,
        updateNewProductSort
    } from '@/api/newProduct';
    import {fetchList as fetchProductList} from '@/api/product';

    const defaultListQuery = {
        pageNum: 1,
        pageSize: 5,
        productName: null,
        recommendStatus: null
    };
    const defaultRecommendOptions = [
        {
            label: '未推荐',
            value: 0
        },
        {
            label: '推荐中',
            value: 1
        }
    ];
    export default {
        name: 'newProductList',
        data() {
            return {
                listQuery: Object.assign({}, defaultListQuery),
                recommendOptions: Object.assign({}, defaultRecommendOptions),
                list: null,
                total: null,
                listLoading: false,
                multipleSelection: [],
                operates: [
                    {
                        label: "设为推荐",
                        value: 0
                    },
                    {
                        label: "取消推荐",
                        value: 1
                    },
                    {
                        label: "删除",
                        value: 2
                    }
                ],
                operateType: null,
                selectDialogVisible: false,
                dialogData: {
                    list: null,
                    total: null,
                    multipleSelection: [],
                    listQuery: {
                        keyword: null,
                        pageNum: 1,
                        pageSize: 5
                    }
                },
                sortDialogVisible: false,
                sortDialogData: {sort: 0, id: null}
            }
        },
        created() {
            this.getList();
        },
        filters: {
            formatRecommendStatus(status) {
                if (status === 1) {
                    return '推荐中';
                } else {
                    return '未推荐';
                }
            }
        },
        methods: {
            handleResetSearch() {
                this.listQuery = Object.assign({}, defaultListQuery);
            },
            handleSearchList() {
                this.listQuery.pageNum = 1;
                this.getList();
            },
            handleSelectionChange(val) {
                this.multipleSelection = val;
            },
            handleSizeChange(val) {
                this.listQuery.pageNum = 1;
                this.listQuery.pageSize = val;
                this.getList();
            },
            handleCurrentChange(val) {
                this.listQuery.pageNum = val;
                this.getList();
            },
            handleRecommendStatusStatusChange(index, row) {
                this.updateRecommendStatusStatus(row.id, row.recommendStatus);
            },
            handleDelete(index, row) {
                this.deleteProduct(row.id);
            },
            handleBatchOperate() {
                if (this.multipleSelection < 1) {
                    this.$message({
                        message: '请选择一条记录',
                        type: 'warning',
                        duration: 1000
                    });
                    return;
                }
                let ids = [];
                for (let i = 0; i < this.multipleSelection.length; i++) {
                    ids.push(this.multipleSelection[i].id);
                }
                if (this.operateType === 0) {
                    //设为推荐
                    this.updateRecommendStatusStatus(ids, 1);
                } else if (this.operateType === 1) {
                    //取消推荐
                    this.updateRecommendStatusStatus(ids, 0);
                } else if (this.operateType === 2) {
                    //删除
                    this.deleteProduct(ids);
                } else {
                    this.$message({
                        message: '请选择批量操作类型',
                        type: 'warning',
                        duration: 1000
                    });
                }
            },
            handleSelectProduct() {
                this.selectDialogVisible = true;
                this.getDialogList();
            },
            handleSelectSearch() {
                this.getDialogList();
            },
            handleDialogSizeChange(val) {
                this.dialogData.listQuery.pageNum = 1;
                this.dialogData.listQuery.pageSize = val;
                this.getDialogList();
            },
            handleDialogCurrentChange(val) {
                this.dialogData.listQuery.pageNum = val;
                this.getDialogList();
            },
            handleDialogSelectionChange(val) {
                this.dialogData.multipleSelection = val;
            },
            handleSelectDialogConfirm() {
                if (this.dialogData.multipleSelection < 1) {
                    this.$message({
                        message: '请选择一条记录',
                        type: 'warning',
                        duration: 1000
                    });
                    return;
                }
                let selectProducts = [];
                for (let i = 0; i < this.dialogData.multipleSelection.length; i++) {
                    selectProducts.push({
                        productId: this.dialogData.multipleSelection[i].id,
                        productName: this.dialogData.multipleSelection[i].name
                    });
                }
                this.$confirm('使用要进行添加操作?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    createNewProduct(selectProducts).then(response => {
                        this.selectDialogVisible = false;
                        this.dialogData.multipleSelection = [];
                        this.getList();
                        this.$message({
                            type: 'success',
                            message: '添加成功!'
                        });
                    });
                });
            },
            handleEditSort(index, row) {
                this.sortDialogVisible = true;
                this.sortDialogData.sort = row.sort;
                this.sortDialogData.id = row.id;
            },
            handleUpdateSort() {
                this.$confirm('是否要修改排序?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    updateNewProductSort(this.sortDialogData).then(response => {
                        this.sortDialogVisible = false;
                        this.getList();
                        this.$message({
                            type: 'success',
                            message: '删除成功!'
                        });
                    });
                })
            },
            getList() {
                this.listLoading = true;
                fetchList(this.listQuery).then(response => {
                    this.listLoading = false;
                    this.list = response.data.list;
                    this.total = response.data.total;
                })
            },
            updateRecommendStatusStatus(ids, status) {
                this.$confirm('是否要修改推荐状态?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    let params = new URLSearchParams();
                    params.append("ids", ids);
                    params.append("recommendStatus", status);
                    updateRecommendStatus(params).then(response => {
                        this.getList();
                        this.$message({
                            type: 'success',
                            message: '修改成功!'
                        });
                    });
                }).catch(() => {
                    this.$message({
                        type: 'success',
                        message: '已取消操作!'
                    });
                    this.getList();
                });
            },
            deleteProduct(ids) {
                this.$confirm('是否要删除该推荐?', '提示', {
                    confirmButtonText: '确定',
                    cancelButtonText: '取消',
                    type: 'warning'
                }).then(() => {
                    let params = new URLSearchParams();
                    params.append("ids", ids);
                    deleteNewProduct(params).then(response => {
                        this.getList();
                        this.$message({
                            type: 'success',
                            message: '删除成功!'
                        });
                    });
                })
            },
            getDialogList() {
                fetchProductList(this.dialogData.listQuery).then(response => {
                    this.dialogData.list = response.data.list;
                    this.dialogData.total = response.data.total;
                })
            }
        }
    }
</script>
<style></style>
